From 10159208e18e92c27dd18a0b10bab8b67bdbe154 Mon Sep 17 00:00:00 2001
From: Mike Gelfand <mikedld@mikedld.com>
Date: Sat, 9 Jan 2016 18:24:43 +0000
Subject: [PATCH] Disable format warnings when building with MinGW

---
 CMakeLists.txt | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 0e123635f..48f864da9 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -426,7 +426,6 @@ if(CMAKE_C_COMPILER_ID STREQUAL "GNU" OR CMAKE_C_COMPILER_ID STREQUAL "Clang")
         -W
         -Wcast-align
         -Wfloat-equal
-        -Wformat-security
         -Wmissing-format-attribute
         -Wpointer-arith
         -Wredundant-decls
@@ -440,6 +439,14 @@ if(CMAKE_C_COMPILER_ID STREQUAL "GNU" OR CMAKE_C_COMPILER_ID STREQUAL "Clang")
             -Winit-self)
     endif()
 
+    if(MINGW)
+        # Disable excessive warnings since we're using __USE_MINGW_ANSI_STDIO
+        # Hopefully, any potential issues will be spotted on other platforms
+        list(APPEND NEEDED_COMPILER_FLAGS -Wno-format)
+    else()
+        list(APPEND NEEDED_COMPILER_FLAGS -Wformat-security)
+    endif()
+
     set(NEEDED_C_COMPILER_FLAGS
         ${NEEDED_COMPILER_FLAGS}
         -Winline